8509820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{823}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 19934208

約数和(自身を除く): 11424388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 823, 940, 1034, 1646, 2068, 2585, 3292, 4115, 5170, 8230, 9053, 10340, 16460, 18106, 36212, 38681, 45265, 77362, 90530, 154724, 181060, 193405, 386810, 425491, 773620, 850982, 1701964, 2127455, 4254910, 8509820]

約数ペア:

[(1, 8509820), (2, 4254910), (4, 2127455), (5, 1701964), (10, 850982), (11, 773620), (20, 425491), (22, 386810), (44, 193405), (47, 181060), (55, 154724), (94, 90530), (110, 77362), (188, 45265), (220, 38681), (235, 36212), (470, 18106), (517, 16460), (823, 10340), (940, 9053), (1034, 8230), (1646, 5170), (2068, 4115), (2585, 3292)]